Was able to finally do some tuning on my car today on race gas. I know there have been several threads in the past year or so about the 70mm 42R, not too many people run the baby 42R for whatever reasons. So far I have seen ~30psi or so to only be 500rpm give or take later than a 67mm turbo but the turbo is making a lot more power up top. Heres the run down:

AutoLab built 2.0L engine 9:1 CP/Crower
BC +1 valves
BC 288* cams
AutoLab custom intake manifold w/ 70mm tbody
AutoLab custom exh manifold
Tial housing 70mm 42R
Tial bov and 60mm gate
AutoLab custom / Garrett core based FMIC 24x12x3.5
Precision 1200cc inj, Full Blown hanger, twin modded Walbros
Autronic SMC PnP board, modded for direct fire
Autronic 500R ignition box w/ CBR coils
Exedy HD twin disk clutch

On pump gas & 18psi (quick street tune) it did 505whp, I know it shows less but the sheet is only scaled to 8k and I rev to 9200.


On C16 and our first 33psi run it did 756whp


then we had some break up issues that we traced down to the plug on cyl #3 is actually coming loose in the head. This head has a helicoil insert on #3 thats going to either need to be redone or a timesert installed. After this we called it a day. I wanted to put the car in or around 42-45psi but that will have to wait I guess.

Pics of the setup






this car is driven on the street, my son loves it and it has full interior, p/s, and a/c

 

Hows' the rev limiter at night with that hood vented wastegate?

A/C and a GT42, so do you know your local law enforcement authorities on a first name basis yet?

 

So how does it look when that wastegate dumps in your face? lol

 

People like you make me mad that I even doubt going gt37 on my daily driver, Nice car and results!

 

the wg dump will put out a good size fire ball on 2step, the sound is really nice on full kill on big boost.

also, forgot to mention, before the haters start in on the #s i realize they are on the high side for the setup/boost levels. Probably in the 50-60whp range but at the end of the day dyno #s don't win races. tuning a 42R car on the street is just plain stupid, you would kill someone. I used this shops awd dyno as a tuning tool and nothing more. I personally own a Dyno Dynamics dyno (2wd) so I know all about the never ending dyno # argument. 42R cars on big boost are going to make plenty of power, so as long as the dyno is used as a tool then you dont need to worry about anything else.

 

Looks great man! Nice numbers!

 

cool setup, when are ya gunna hit the track with that setup?

 

Hahaha

 

that's strong as hell..congrats. I've been thinking about the 42r, so I appreciate that you shared your results. 33psi and 750+awhp is pretty awesome...it looks like the power was about the same until 7000+ Shifting at 9k you'll land back into the power so it should scoot on down the track pretty good.

 

i love wat you done to it ........ sweeet.

 

That's just crazy to have an evo with a gt42 for a daily driver. I like the way you think

 

I wanna see a pic from the top of the hood looking down on the Dump. I cant get over that. What manifold do u have?

 

sick car...i will one day do a 42r after im bored of the hta 35r.....sick waste gate setup for the dump tube..

 

Thats a real sleeper u have there

 

mellon, the car is a lot more responsive on the street. It makes 33psi by 6200rpm. the car is very streetable for as big as the turbo is.

evocrazy, the manifold is my design. I built the engine, fabricated the turbo system and intake manifold and tuned it.

thanks for the compliments guys, the hood vented wg dump gets a lot of response on the street too I'll try to get a pic or a vid of it from in the car at night.